Search the Community
Showing results for tags 'su carburetor'.
Found 1 result
-
Hi all, I recently got my first Z (1975 260z) and learning how the more vintage style system works. It is running rich at the moment (Very 20L per 100km) and Im wondering if I cant get a proper tune if; 1. SU carburetors are running stock piston spring (Reconditioned) 2.Engine(L26) is running a lumpy cam (Not sure on spec) & High compression (10.5:1) I am tuning using the uni-syn tool trying to lean as much as i can but idle becomes weak below 900-1000 rpm and at a higher 5000 rpm+ and more heavy foot throttle position, operation becomes average and struggles to accelerate. I have read on different spring types like red and green but what difference will this make to the operation? Many thanks.
